diff --git a/configuration.nix b/configuration.nix
index 8685e80..a8e5349 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -97,11 +97,7 @@
   # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
   system.stateVersion = "23.11"; # Did you read the comment?
 
-  nix = {
-    package = pkgs.nixUnstable;
-    extraOptions = ''
-      experimental-features = nix-command flakes
-    '';
-  };
+  nix.package = pkgs.nixUnstable;
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
 }
 
diff --git a/guides/installation.md b/guides/installation.md
index 0d472a7..6642212 100644
--- a/guides/installation.md
+++ b/guides/installation.md
@@ -34,15 +34,11 @@ nano configuration.nix
 
 In there, change the `environment.systemPackages = with pkgs; [];` like, and include `git` and `vim`.
 
-After that, let's enable flakes, by adding the following at the end of your `configuration.nix` (but still within the function body - before the last `}`):
+After that, let's enable flakes, by adding the following anywhere in your `configuration.nix`:
 
 ```nix
-nix = {
-    package = pkgs.nixUnstable;
-    extraOptions = ''
-        experimental-features = nix-command flakes
-    ''
-};
+nix.package = pkgs.nixUnstable;
+nix.settings.experimental-features = [ "nix-command" "flakes" ];
 ```
 
 Now you can save the changes and rebuild the system: